[PATCH 37/51] drm/amd/display: Convert 10kHz clks from PPLib into kHz

Harry Wentland harry.wentland at amd.com
Tue Jun 19 21:10:44 UTC 2018


From: Mikita Lipski <mikita.lipski at amd.com>

The driver is expecting clock frequency in kHz, while SMU returns
the values in 10kHz, which causes the bandwidth validation to fail

Change-Id: I7b79af18d200fd2157193ee9041c675fe66c391c
Signed-off-by: Mikita Lipski <mikita.lipski at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
---
 .../amd/display/amdgpu_dm/amdgpu_dm_services.c    | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
index a3b8b295aa27..3b7b74d3cdcf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
@@ -275,8 +275,9 @@ static void pp_to_dc_clock_levels_with_latency(
 			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));
 
 	for (i = 0; i < clk_level_info->num_levels; i++) {
-		DRM_DEBUG("DM_PPLIB:\t %d\n", pp_clks->data[i].clocks_in_khz);
-		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz;
+		DRM_DEBUG("DM_PPLIB:\t %d in 10kHz\n", pp_clks->data[i].clocks_in_khz);
+		/* translate 10kHz to kHz */
+		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz * 10;
 		clk_level_info->data[i].latency_in_us = pp_clks->data[i].latency_in_us;
 	}
 }
@@ -302,8 +303,9 @@ static void pp_to_dc_clock_levels_with_voltage(
 			DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));
 
 	for (i = 0; i < clk_level_info->num_levels; i++) {
-		DRM_INFO("DM_PPLIB:\t %d\n", pp_clks->data[i].clocks_in_khz);
-		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz;
+		DRM_INFO("DM_PPLIB:\t %d in 10kHz\n", pp_clks->data[i].clocks_in_khz);
+		/* translate 10kHz to kHz */
+		clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz * 10;
 		clk_level_info->data[i].voltage_in_mv = pp_clks->data[i].voltage_in_mv;
 	}
 }
@@ -479,8 +481,9 @@ bool dm_pp_get_static_clocks(
 		return false;
 
 	static_clk_info->max_clocks_state = pp_clk_info.max_clocks_state;
-	static_clk_info->max_mclk_khz = pp_clk_info.max_memory_clock;
-	static_clk_info->max_sclk_khz = pp_clk_info.max_engine_clock;
+	/* translate 10kHz to kHz */
+	static_clk_info->max_mclk_khz = pp_clk_info.max_memory_clock * 10;
+	static_clk_info->max_sclk_khz = pp_clk_info.max_engine_clock * 10;
 
 	return true;
 }
-- 
2.17.1



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